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Let Them Burn? How Wildfire Restored a Lost Forest Ecosystem in Yosemite
Photo by <a href="https://unsplash.com/@austriannationallibrary?utm_source=instant-images&utm_medium=referral" target="_blank" rel="noopener noreferrer">Austrian National Library</a> on <a href="https://unsplash.com" target="_blank" rel="noopener noreferrer">Unsplash</a>

America

Let Them Burn? How Wildfire Restored a Lost Forest Ecosystem in Yosemite

In Yosemite’s Illilouette Creek basin, a stand of young Sierra lodgepole pine grow in a forest clearing that was created by wildfire 20 years prior. Mt. Starr King appears in…

12 September 2021 · 13 min read

“Dental Origami” – How Snakes Got Their Fangs
Photo by <a href="https://unsplash.com/@iamromankraft?utm_source=instant-images&utm_medium=referral" target="_blank" rel="noopener noreferrer">Roman Kraft</a> on <a href="https://unsplash.com" target="_blank" rel="noopener noreferrer">Unsplash</a>

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“Dental Origami” – How Snakes Got Their Fangs

Types of venom fangs in snakes: rear fangs (crab-eating water snake), fixed front fangs (taipan), and hinged front fangs (Gaboon viper); fangs highlighted in red. Credit A. Palci ‘Dental origami’…

12 September 2021 · 3 min read

As COVID Delta Variant Infections Surge, More Americans Favor Vaccine Mandates
Photo by <a href="https://unsplash.com/@fujiphilm?utm_source=instant-images&utm_medium=referral" target="_blank" rel="noopener noreferrer">Fujiphilm</a> on <a href="https://unsplash.com" target="_blank" rel="noopener noreferrer">Unsplash</a>

America

As COVID Delta Variant Infections Surge, More Americans Favor Vaccine Mandates

Support for mandates has increased across partisan and demographic subgroups. As infections from the delta variant surge, the percentage of Americans who support vaccine mandates has risen to 64% from…

12 September 2021 · 3 min read

New Research Shows Decline in CO2 Cooled Earth’s Climate Over 30 Million Years Ago
"<a href="https://www.flickr.com/photos/38101026@N00/4880193319" target="_blank" rel="noopener noreferrer">Interview</a>" by <a href="https://www.flickr.com/photos/38101026@N00" target="_blank" rel="noopener noreferrer">Fellowship of the Rich</a> is licensed under <a href="https://creativecommons.org/licenses/by-nc-nd/2.0/" target="_blank" rel="noopener noreferrer">CC BY-NC-ND 2.0</a>

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New Research Shows Decline in CO2 Cooled Earth’s Climate Over 30 Million Years Ago

Tree stump in lignite deposits. Credit: Vittoria Lauretano New research led by the University of Bristol demonstrates that a decline in the concentration of atmospheric CO2 played a major role…

12 September 2021 · 3 min read

Geologists Discover That NASA Rover Has Been Exploring Surface Sediments, Not Ancient Lake Deposits
Photo by <a href="https://unsplash.com/@amanz?utm_source=instant-images&utm_medium=referral" target="_blank" rel="noopener noreferrer">Amanz</a> on <a href="https://unsplash.com" target="_blank" rel="noopener noreferrer">Unsplash</a>

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Geologists Discover That NASA Rover Has Been Exploring Surface Sediments, Not Ancient Lake Deposits

An image taken by the Curiosity Rover MastCam instrument shows layered sedimentary rocks composing Mount Sharp. The rover has been driving from the floor of Gale crater up through the…

12 September 2021 · 5 min read

Exceptionally Preserved Fossil Sheds Light on the Evolution of How Dinosaurs Breathed
Photo by <a href="https://unsplash.com/@amanz?utm_source=instant-images&utm_medium=referral" target="_blank" rel="noopener noreferrer">Amanz</a> on <a href="https://unsplash.com" target="_blank" rel="noopener noreferrer">Unsplash</a>

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Exceptionally Preserved Fossil Sheds Light on the Evolution of How Dinosaurs Breathed

Life reconstruction of Heterodontosaurus vocalizing on a cool Jurassic morning. Credit: Viktor Radermacher Using an exceptionally preserved fossil from South Africa, a particle accelerator, and high-powered x-rays, an international team…

12 September 2021 · 4 min read

Butterflies Cross the Vast Sahara Desert in Longest-Known Insect Migration
Photo by <a href="https://unsplash.com/@fujiphilm?utm_source=instant-images&utm_medium=referral" target="_blank" rel="noopener noreferrer">Fujiphilm</a> on <a href="https://unsplash.com" target="_blank" rel="noopener noreferrer">Unsplash</a>

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Butterflies Cross the Vast Sahara Desert in Longest-Known Insect Migration

A Painted Lady butterfly in Morocco. Credit: Orio Massana Weather conditions shown to have big influence on migration numbers. A species of butterfly found in Sub-Saharan Africa is able to…

12 September 2021 · 4 min read

Solving the Plastic Shortage With an Efficient New Chemical Catalyst
Photo by <a href="https://unsplash.com/@fabioha?utm_source=instant-images&utm_medium=referral" target="_blank" rel="noopener noreferrer">fabio</a> on <a href="https://unsplash.com" target="_blank" rel="noopener noreferrer">Unsplash</a>

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Solving the Plastic Shortage With an Efficient New Chemical Catalyst

In a year that has already battered manufacturing supply chains, yet another shortage is complicating manufacturers’ and consumers’ lives: plastics, and the food packaging, automotive components, clothing, medical and lab…

12 September 2021 · 4 min read

How Organisms Have Evolved To Address Imbalances in Sex Chromosomes
Photo by <a href="https://unsplash.com/@austriannationallibrary?utm_source=instant-images&utm_medium=referral" target="_blank" rel="noopener noreferrer">Austrian National Library</a> on <a href="https://unsplash.com" target="_blank" rel="noopener noreferrer">Unsplash</a>

America

How Organisms Have Evolved To Address Imbalances in Sex Chromosomes

The species of turtle involved in the study is Apalone spinifera, a species of freshwater turtles native to North America. But the researchers say their findings shed light on the…

12 September 2021 · 5 min read

Researchers Investigate Newly Introduced Butterfly That Could Become Widespread in Canada
Photo by <a href="https://unsplash.com/@fabioha?utm_source=instant-images&utm_medium=referral" target="_blank" rel="noopener noreferrer">fabio</a> on <a href="https://unsplash.com" target="_blank" rel="noopener noreferrer">Unsplash</a>

America

Researchers Investigate Newly Introduced Butterfly That Could Become Widespread in Canada

Male and female Polyommatus icarus mating. Credit: Stephanie A. Rivest This summer, if you see a butterfly with wings that are blue on top with orange spots underneath, you may…

12 September 2021 · 4 min read